What do you need to do for cleanroom purification? What is a Cleanroom?

Dust-free workshop purification decoration construction requirements.

1. The ground treatment is self-leveling ground treatment, and the 2mm thick PVC floor is laid.

2. According to the requirements of GMP specifications, the design and installation of the clean room should be considered to avoid the parts that are not easy to clean.

In this project, when purifying and decorating, doors and windows are installed and built, purified air conditioning, various pipelines, and lighting fixtures.

The joints and gaps should be sealed.

3. All the accessories, partition walls, and ceiling fixing and hanging parts can only be connected to the main structure, not to the equipment and pipes.

The wire brackets are cross-mixed to prevent loosening of the decorative materials and dust falling off due to micro-vibration.

4. The gaps between building decoration and doors and windows should be sealed on the front.

5. According to GMP certification inspection standards, interior decoration should meet the following requirements:

a.Materials with good air tightness and low deformation under changes in temperature and humidity should be selected.

b.The surface of the wall and ceiling should be smooth, smooth, no ash, no dust, corrosion resistance, impact resistance, easy to clean, and reduce.

Less concave and convex surfaces. The junction of the wall and the ground is made into a radius equal to 50 mm. The color of the wall should be harmonious, elegant, and.

Facilitates the identification of contaminants.

c.Doors and windows should be straight with the interior wall, and the structure should fully consider the sealing of air and water vapor, so that the pollution particles are not easy to follow.

External infiltration prevents condensation due to temperature differences between indoor and outdoor areas. Interior doors and interiors between rooms with different cleanliness.

Gaps such as windows and partitions must be sealed.

6. The amount of dust generated in the construction operation should be controlled during construction, especially in the hidden spaces such as the ceiling and the inside of the sandwich wall.

Sweep at any time. 7. In the room where the high-efficiency filter has been installed, the decoration operation with dust cannot be carried out.

8. Pay attention to the protection of the completed working surface, and do not dent the plate due to impact, knocking, trampling, watery operation, etc.

dark cracks and contamination of surface finishes.

You can find KDL to specialize in the cleaning process, and now it is generally a combination of whole room purification and local purification, which can ensure a certain degree of cleanliness in the room.

A cleanroom, also known as a clean room or clean room. It is the basis for contamination control, and without a clean room, mass production of contamination-sensitive parts is impossible. In FED-STD-2, a cleanroom is defined as a room with air filtration, distribution, optimization, and construction materials and devices with specific rules of operating procedures to control the concentration of airborne particulates to achieve the appropriate level of particulate cleanliness.

Clean room refers to a specially designed room that excludes particles, harmful air, bacteria and other pollutants in the air within a certain space range, and controls the indoor temperature, cleanliness, indoor pressure, air velocity and air distribution, noise and vibration, lighting, and static electricity within a certain range of needs. That is to say, no matter how the external air conditions change, the interior can maintain the characteristics of cleanliness, temperature, humidity and pressure that were originally set. The main function of the clean room is to control the cleanliness day, temperature and humidity of the atmosphere that the product (such as silicon chips, etc.) is exposed to, so that the product can be produced and manufactured in a good environmental space, which we call clean room.

According to international practice, the dust-free purification level is mainly based on the number of particles whose particle diameter per cubic meter of air is greater than the classification standard. In other words, the so-called dust-free is not 100% free of a little dust, but is controlled in a very small unit. Of course, the particles that meet the dust standard in this standard are already small and insignificant compared to our common dust, but for optical structure, even a little dust will have a very large negative impact, so in the production of optical structure products, dust-free is an inevitable requirement.

The number of fine dust smaller than micron particles per cubic meter is controlled below 3,500, which meets the international dust-free standard Class A. At present, the dust-free standard applied to chip-level production and processing has higher requirements for dust than Class A, and such a high standard is mainly used in the production of some higher-grade chips. The number of fine dust of 5um and below is strictly controlled within 1000 per cubic meter, which is commonly known as the 1k level in the industry.

A cleanroom is a room or area where the concentration of airborne particles and microorganisms is controlled. Its building structure, equipment and use should have the function of reducing indoor induction, generation and retention of pollution sources. Other relevant indoor parameters such as temperature, humidity, pressure, etc. are controlled as required.

Henan Dehe Testing Technology **** hopes that the answer will be helpful to you!!

Clean room refers to the room designed to remove particles, harmful air, bacteria and other pollutants in the air within a certain space range, and control indoor temperature, cleanliness, indoor pressure, air velocity and air distribution, noise, vibration and lighting, and static electricity within a certain range. That is to say, no matter how the external air conditions change, the interior can maintain the original cleanliness, temperature, humidity, pressure and other performance requirements.

Cleanrooms are divided into industrial cleanrooms and biological cleanrooms.

The industrial clean room is suitable for precision machinery industry, electronics industry (semiconductors, integrated circuits, etc.), aerospace industry, high-purity chemical industry, atomic energy industry, optical and magnetic products industry (optical disc, film, tape generation), LCD (liquid crystal glass), computer hard disk, computer head production and other industries.

Biological clean rooms are suitable for pharmaceutical industry, hospitals (operating rooms, sterile wards) food, cosmetics, beverage product production, animal laboratories, physical and chemical laboratories, blood banks and other fields. There are also relatively demanding fields such as bacteriology, biology, clean laboratory, and material engineering (recombinant genes, vaccine preparation).

1. The front filter (generally the back cover of the chassis) has been used for a long time, and some dust will be gathered, which will affect the air intake and the effect of air purification. Therefore, it is necessary to use a vacuum cleaner to remove the dust, or eliminate it with a rag to clean up this code, or even wash it with water.

2. Deodorization filter, the deodorization filter of a few brands of air purifiers, in order to achieve the technical level of water washing, can be washed through water, that is, to maintain the purification efficiency and shorten the cycle of changing the filter.

3. Filters, some filters need to be taken to the sun regularly to dry, so that the purification efficiency can be better maintained, such as activated carbon filters.

4. The ionizer is generally built-in and does not need to be cleaned, and the better ionizer has higher working efficiency.

The above is the purifier cleaning method I shared with you, and those who need it can learn about it.

1. Clean engineering system.

Indoor air purification systems can be divided into horizontal laminar flow, vertical laminar flow and turbulence, and the choice of airflow form depends on the working parameters of the room.

2. Cleanliness and number of air changes of clean engineering.

The cleanliness of the room depends on the number of air changes per unit time, so carefully consider the nature of the work of the room and the requirements of the production process before deciding the technical parameters of the purification system.

3. Structure. In order to ensure that the airflow is virtually undisturbed, the structure must be designed, and the necessary care can prevent dust accumulation anywhere in the room.

4. Clean purification engineering design scheme.

To determine the design scheme, we must first carefully consider the working nature of the room and the airflow conditions, the workshop with a large amount of dust should not use the form of ground air supply, and the workshop with high cleanliness requirements should be as far away from other workshops as possible.

5. Materials. As a clean room ceiling, the materials of the walls and floors must not be broken, not easy to particles, and almost dust-free materials, and according to the different working conditions of the room, the chemical properties of the filter materials must also be considered whether they are stable.

6. Pressure and airflow.

In order to ensure the cleanliness of the room, it is necessary to prevent outside polluted air from entering the room, and to achieve this, positive pressure must be maintained in the room, and in order to obtain the required room pressure, appropriate fresh air must be supplemented.

7. Auxiliary equipment.

If necessary, it is necessary to install some auxiliary equipment: such as the air indicator for the fresh air inlet, the transfer window on the partition, etc., which must be adapted to the requirements of the room and must really understand its function.

8. Control of people and things.

People and objects are the main sources of dust in the clean room, so they must be fully controlled, for example, before entering the clean room, all people must go through the human cleaning system, change dust-free clothes, and receive basic education on the function of the cleaning system.

Regarding the design of the clean purification system, Shengshihua has authoritative qualifications and has cooperated many times, which is highly recommended.

What is the best purification engineering design? Of course, it is best according to national standards. If you want to know the simplicity and specificity, it is nothing more than as said downstairs, the plate is flat, airtight, no dust accumulation, anti-static, insect-proof and mildew-proof and the like.

If you want to know the complexity of the purification engineering design in the details, Hunan Chunzhen Purification Engineering can give you a brief introduction, and the specific needs to be consulted in detail. The purification level is generally divided into 100 levels, 1000 levels, 10000 levels, and 100000 levels, and the air volume, pressure difference, and number of air changes at each level are different. The further down, the lower the level and the lower the cleanliness.

As can be seen from the figure below, the standards of each level are different, and the purification project can be checked and checked when it is accepted. It is best to consult a professional purification engineering company, which will teach you how to look. What does it take to meet the requirements?

In addition, in addition to the above, the purification engineering design also includes noise control, micro-vibration control, fire prevention and evacuation, positive and negative pressure, heating and ventilation, water supply and drainage, electrical lighting and so on. Hope it works for you!

The design of the purification project is good if it meets the needs of customers. According to the needs of customers, people and environment tailor-made for customers to design the best purification engineering scheme for clean operating room, and at the same time equipped with ultra-high standard purification equipment to ensure the quality of purification engineering.

1. The building envelope and interior decoration of the clean workshop should be made of materials with good air tightness and small deformation under the action of changes in temperature and humidity. When the interior decoration of the wall needs to be supplemented with a structural skeleton and insulation layer. Non-combustible or refractory combustible substances should be used.

2. The surface of the walls and ceilings in the clean workshop should meet the requirements of smoothness, smoothness, no ash, avoiding glare, and convenient dust removal; The concave and convex surfaces should be reduced, and the yin and yang corners should be rounded. Interior decoration should be used for operation; If it is plastering, advanced plastering standards should be used. 3. The floor of the clean workshop should meet the requirements of smoothness, wear-resistance, easy dust removal and cleaning, not easy to accumulate static electricity, avoid glare, and have a sense of comfort.

Fourth, the walls and ceilings of the technical mezzanine of the clean workshop should be plastered. If the HEPA filter needs to be replaced in the technical interlayer, it is advisable to add a paint finish. The ground, return air trench and technical interlayer located underground shall be waterproof or moisture-proof and mildew-proof.

The interior surface decoration standard of building air duct and return air trench should be compatible with the entire supply and return air system, and should be easy to remove dust. 5. The exterior windows set up in the clean workshop and the personnel purification room should be double-glazed metal windows and should have good air tightness. 6. The closed door in the clean workshop should be opened to the room with high air cleanliness.

Observation windows should be set up on the closed doors of windowless clean rooms. 7. Reliable sealing measures should be taken for the structure and construction gaps of the doors, windows, walls, ceilings, and ground (floors) of the clean workshop. 8. The color in the clean workshop should be elegant and soft.

The light reflection coefficient of each surface material in the room, the ceiling and wall should be 0 6 0 8;The ground should be 0 15--0 35.

According to GMP specifications, the essence of clean room design is to be aesthetically pleasing and clean, to prevent product contamination and quality changes. Therefore, the design of doors and windows in clean interior decoration, the design of the ground, wall and ceiling is different from that of general workshops.

The ground should be smooth, seamless, wear-resistant and corrosion-resistant, not easy to accumulate static electricity, and easy to clean the overall ground.

Usually, after the renovation of factories and factories, there will be a variety of different smells. And most workers stay in the factory for more than 8 hours a day, but they are rarely wary of the invisible "killer" of the factory and the plant. This is also one of the main reasons for the increase in many occupational disease patients, which has to be paid great attention to.

The pollution of factory and plant decoration is mainly air pollution, and the smell is transmitted through the air, and air pollution is the main form of pollution in factory and plant decoration. With the popularization of automation in factories and factories, the application of machines, printers, copiers, computers and other equipment; In addition, carpets, wallpapers, adhesives, etc. pollute the air of factories and factories to varying degrees. The harmful substances released by the above equipment and decoration mainly include formaldehyde, benzene, TVOC, cresol and ammonia.

It must be based on the design drawings.

Many people buy a purifier at home to freshen the air in their home. What are the steps to use the purifier? Next, let's listen to the stool coming.

1. Turn on the power supply.

Turn on the power switch of the air purifier, and when the power switch indicator light is on, it means that it has been turned on.

2. Quick net mode.

When you start turning on the air purifier, you can use this mode to quickly remove pollutants from the air.

3. Smart mode.

When the smart mode is activated, it will automatically adjust the wind speed according to the quality of the indoor air, which is more convenient and fast and does not require any operation.

4. Sleep mode.

When we need to sleep at night, we can adjust the air purifier to sleep mode, and it will run at less power.

5. Wind speed adjustment.

If we want to adjust the wind speed of the purifier, we only need to press the wind speed key to change the wind speed, and we can adjust the wind speed by pressing the wind speed button repeatedly, there are three gears, which are low speed, medium speed, and extreme speed.